body {
  background: #48a0f8;
}
#logo {
  margin-top: 20px;
  margin-left: 240px;
  position: absolute;
}
.box {
  width: 400px;
  height: 310px;
  background-color: pink;
  box-shadow: 5px 5px 5px 5px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
}
h1 {
  height: 60px;
  line-height: 60px;
  text-align: center;
}

a {
  float: right;
}
.layui-form-item {
  position: relative;
}
.layui-icon {
  position: absolute;
  left: 9px;
  top: 9px;
}
.layui-input {
  padding-left: 27px;
}
.layui-form-item {
  margin-left: 25px;
  margin-right: 25px;
}
/* 默认，让注册的盒子隐藏 */
.register {
  display: none;
}